Home | History | Annotate | Line # | Download | only in gen 
      1  1.1  drochner /* $NetBSD: compat_sigsetjmp.S,v 1.1 2005/09/16 18:21:19 drochner Exp $ */
      2  1.1  drochner 
      3  1.1  drochner /*
      4  1.1  drochner  * Copyright (c) 1994, 1995 Carnegie-Mellon University.
      5  1.1  drochner  * All rights reserved.
      6  1.1  drochner  *
      7  1.1  drochner  * Author: Chris G. Demetriou
      8  1.1  drochner  *
      9  1.1  drochner  * Permission to use, copy, modify and distribute this software and
     10  1.1  drochner  * its documentation is hereby granted, provided that both the copyright
     11  1.1  drochner  * notice and this permission notice appear in all copies of the
     12  1.1  drochner  * software, derivative works or modified versions, and any portions
     13  1.1  drochner  * thereof, and that both notices appear in supporting documentation.
     14  1.1  drochner  *
     15  1.1  drochner  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16  1.1  drochner  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17  1.1  drochner  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18  1.1  drochner  *
     19  1.1  drochner  * Carnegie Mellon requests users of this software to return to
     20  1.1  drochner  *
     21  1.1  drochner  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22  1.1  drochner  *  School of Computer Science
     23  1.1  drochner  *  Carnegie Mellon University
     24  1.1  drochner  *  Pittsburgh PA 15213-3890
     25  1.1  drochner  *
     26  1.1  drochner  * any improvements or extensions that they make and grant Carnegie the
     27  1.1  drochner  * rights to redistribute these changes.
     28  1.1  drochner  */
     29  1.1  drochner 
     30  1.1  drochner #include <machine/asm.h>
     31  1.1  drochner 
     32  1.1  drochner /*
     33  1.1  drochner  * C library -- sigsetjmp, siglongjmp
     34  1.1  drochner  *
     35  1.1  drochner  *	siglongjmp(a,v)
     36  1.1  drochner  * will generate a "return(v)" from
     37  1.1  drochner  * the last call to
     38  1.1  drochner  *	sigsetjmp(a, mask)
     39  1.1  drochner  * by restoring registers from the stack.
     40  1.1  drochner  * If `mask' is non-zero, the previous signal
     41  1.1  drochner  * state will be restored.
     42  1.1  drochner  */
     43  1.1  drochner 
     44  1.1  drochner 	.set	noreorder
     45  1.1  drochner 
     46  1.1  drochner LEAF(sigsetjmp, 2)
     47  1.1  drochner 	LDGP(pv)
     48  1.1  drochner 	stq	a1, (81 * 8)(a0)		/* save the mask */
     49  1.1  drochner 	bne	a1, Lsavesig			/* if !zero, save signals */
     50  1.1  drochner 	jmp	zero, _setjmp				/* else don't. */
     51  1.1  drochner Lsavesig:
     52  1.1  drochner 	jmp	zero, setjmp
     53  1.1  drochner END(sigsetjmp)
     54  1.1  drochner 
     55  1.1  drochner LEAF(siglongjmp, 2)
     56  1.1  drochner 	LDGP(pv)
     57  1.1  drochner 	ldq	t0, (81 * 8)(a0)		/* get the mask */
     58  1.1  drochner 	bne	t0, Lrestoresig			/* if !zero, restore signals */
     59  1.1  drochner 	jmp	zero, _longjmp
     60  1.1  drochner Lrestoresig:
     61  1.1  drochner 	jmp	zero, longjmp
     62  1.1  drochner END(siglongjmp)
     63